Amount, composition and sources of macrolitter from a highly frequented roadway
3ème rencontre du GDR Polymères et Océans, BREST, FRANCE, 27-/06/2022 - 29/06/2022
Technical note: Emission factors, chemical composition and morphology of particles emitted from Euro 5 diesel and gasoli...
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Abstract. Changes in engine technologies and after-treatment devices can profoundly alter the chemical composition of the emitted pollutants. To investigate these effects, we characterized the chemical composition of particles emitted from three diesel and four gasoline Euro 5 light duty vehicles on a chassis dynamometer facility. Black carbon (BC)...
Potential for calcination of a palygorskite-bearing argillaceous carbonate
The intensive use of cement as a building material causes significant pollution. The majority of CO2 emissions come from the manufacturing process and not from the product itself. Indeed, the decarbonation of limestone and the use of fuels during clinkerisation are very polluting. One of the main solutions to reduce the environmental footprint of t...
Chemotypes and biomarkers of seven species of New Caledonian liverworts from the Bazzanioideae subfamily
Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were consti...
Development of a multi-linear quadratic experimental design for the EM characterization of concretes in the radar freque...
This study is focused on the electromagnetic characterization of concretes within the ground-penetrating radar frequency band. The evaluation of the complex dielectric properties is carried out in laboratory on 36 different concrete specimens defined by a specific experimental design. The composition parameters of the concrete mix design are the ag...
Development of a multi-linear quadratic experimental design for the EM characterization of concretes in the radar freque...
Study of the Elemental Partitioning for Different Transformation Conditions in the Ti-5553 Alloy
The microstructure and the solute distribution inside the phases after isothermal holding in the temperature range between 420°C and 700°C in the Ti-5553 alloy were analyzed using TEM equipped with an EDX analyzer and atom probe tomography. When phase transformation occurred at high temperatures (≥ 600°C), a significant partitioning of all solute e...
Projet mermose: caractérisation des émissions particulaires en sortie d'un moteur aéronautique civil ; de la morphologie...
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Compte tenu de la croissance régulière du transport aérien, le gouvernement français a décidé de soutenir une étude visant à mieux comprendre les processus de formation des traînées de condensation, leur impact sur le climat, et également de prévenir et de maîtriser leur apparition et leurs effets. Dans ce cadre, nous avons réalisé une campagne de ...
Impact of high-pH fluid circulation on long term hydromechanical behaviour and microstructure of compacted clay from the...
Published in Applied Clay Science
•Alkaline water circulation reduced the swelling ability of compacted clay.•Extended circulation led to an increase of friction angle.•Alteration of behaviour could be related to the neoformation of illite.•Alkaline water circulation alters the sealing characteristics of compacted clay.
Fluid chemistry of the low temperature hyperalkaline hydrothermal system of the Prony Bay (New Caledonia)
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